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Official data from INPI

CIRCUITO PARA SUPRESSÃO DE ARCO ATRAVÉS DE CONTATOS DE COMUTAÇÃO ELÉTRICA

Arquivada/ExtintaInvention Patent

Application data

Number

PI9603724

Type

Invention Patent

Filing

09/10/1996

Publication

05/26/1998

Progress at the INPI

  1. Filing09/10/96
  2. Publication05/26/98
  3. Examination
  4. Allowance10/29/02
  5. Grant05/27/03
  6. Expired11/08/16

The letters patent expired on 11/08/2016: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/08/2016. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Schweitzer Engineering Laboratories, Inc.

US

See this company's full portfolio

Inventors

T. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

08/527,185 · 09/12/1995

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 10/09/2016

11/08/2016

RPI 2392

Concessão da patente

#16.1

05/27/2003

RPI 1690

Deferimento

#9.1

10/29/2002

RPI 1660

Publicação do pedido de patente

#3.1

05/26/1998

RPI 1431

Pedido de patente depositado

#2.1

01/21/1997

RPI 1364

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